Lifting jack for vehicles



.L M. TOBlAS. LIFHNG JACK FOR VEHICLES. APPLICATION FILED APR. 28, 1921.

Patented Feb. 7; 1922.

2 SHEETSSHEET i- M/VE/VTOR flu I)! 1! M. mm

HF'HNG JACK FOR VEHICLES.

' APPLICATION BLED APR.2|8,192L

1,406, 1 08. muted Feb. 7, 1922.

2 SHEETS SHEET 2- w a I H 7 //V MENTOR WITNE6 5S I 7a" siding atPittsburgh, in the con JOHN M. TOIBIAS, OF PITTSBURGH, PENNSYLVANIA.

LIFTING JACK FOR VEHICLES..

Specification of Letters Patent.

Patented Feb. 7, 1922.

Application filed April 28, 1921 Serial No. 465,205.

To all whom it may concern:

Be it known that I, JOHN M. *ToerAs, renty of Allegheny and State ofPennsylvania, a citizen of the United States, have invented or discovered certain new and useful Improvements in Lifting Jacks forVehicles, of which improvements the following is a specification. v P

My invention resides in a device for liit ing the wheel. of anautomobile free of the ground as occasion may arise. It is intendedprimarily for application to and use with automobiles, where it isserviceable when occasion arises toremove or replace a-tire. The device,when applied, is brou 'ht into play by the travel of the car itseliwhich ordinarily is effected under the power of the engine, and theadvantages attained are simplicity, strength, cheapness, facility of appication and removal. There are incidental advantages, over and above theachievement of the primary purpose; these will be mentioned in thesequel.

In the accompanying drawings, Fig. I is a View in side elevation of anautomobile wheel with the appliance in which my inhention resides inplace upon it; Fig. II is a ragmentary view, and

of the wheel; Fig. IV is a View in perspective of that member or elementof the device which in ,theordinary service of the automobile isremovable and. replaceable as occasion arises. Fig. V is a viewcorresponding to Fig. III and illustrating a modification; Fig. VI is aView in elevation of the foot member of the applianceitself, inthe-modi.- fied form. of Fig. V, detached from "the wheel. I p

The appliance in which the invention rcsides is made .up of twoessential parts, which I shall speak of as anchor member and footmember.

The anchor member is indicated in thethe nhmeral 1. It is a castingdrawings by consisting of a block-like body 1, shaped to engage theinner surface of the telly of the wheel and preferably to fillsubstantially to larger scale, in vertical section on the medial planeof through the wheel and the affords means by which the all of the spacebetween two adjacent spokes. From it extends on one side (it will inservice be the side toward the body of the machine) a flange 2,overlying the This anchor block is recessed, so that when applied an eyea is formed. between it and the felly of the wheel. This eye extendstransversely and opens across the folly from side to side of the wheel.The anchor block is bolted to the folly of the wheel as is best shown inFig. II. It will be remarked that as shown in the drawings the bolts bywhich the anchor block is secured to the-felly extend in a directionradial of the wheel. By this arrangement the strains of service are mosteffectively resisted. The inner surface of the telly, at the point whereit is applied, will ordinarily be faced with a metal bearing plate 3,and the body of the block over those surfaces, which (when the block isplaced) extend opposite felly and spoke, will advantageously be facedwith a layer 4 of leather or other suitable elastic mate rial. Such afilling of elastic material will be elicctive to hold the block moresecurel for it will be perceived (Fig. II) that the space in which thisblock rests, being defined by the telly and two adjacent spokes, isrounded outwardly, and laterally tapers inward. This anchor block, onceapplied, is

intended to remain in place while the automobile continues in'service.It is no impediment atjall to normal service, and it foot may be quicklyapplied and secured, and from which the foot, in turn, with likefacility be removed. v

The foot member is conveniently made (this oi course is not a limitingpoint of description) of a forged iron bar, ordinarily :1 rolled ironbar, conveniently of square cross section shown. Thisbar is shaped, asis best shown in Fig.

and terminal extensions 6. The medial loop is of such shape and size asto be capable of being thrust through the eye a, fUl'IIlQd by andbetween the anchor block 1 and the folly of the wheel. The foot' memberis otherwise essentially C-shapcd, and surrounds the tire on. threesidcs-abovc and below, and laterally on the side'next the car body; itstands free of the tire; and its two terminal extensions 6 overhang thetread of the tire at an interval from the face of the tread. shape andarrangement of this foot memspokes.

IV, into a medial loop In all these particulars the sinking in softground.

her will readily be understood by comparing Fig. IV with the otherfigures, particularly Figs. II and III. The intermediate pore tions ofthe foot member extend opposite the inner side of the wheel, that istheside toward the body of the vehicle, (the righthand side, as shown inFigure III). The foot member may be provided with a stop conveniently inthe form of a pin 7, which in the application of the foot member shallabut against the anchor block 1, to certainly define the proper positionof the foot member. The terminal extensions 6 of the foot member may bebridged across by a web 8, the purpose of. which is to afford anextended bearing'surface for wet round.

From the web 8 extend groundgripping teeth 9; and these are so disposedthat, when the foot member is in service position they extendsubstantially in the media]. plane of the wheel. Conveniently the web 8is formed of rolled steel, and the teeth 9 are formed from the plate byslitting and pressing, drawings.

The modification shown in Figs. V and VI is characterized by thesefeatures; The square-sectional rod of which the foot memher isadvantageously formed is twisted intermediate the extent of the footmember, and the terminal extensions 6 accordingly present sharp edges tothe roadbed; the web 8 ceases to be the primary road engaging member(such office being left to the eX- tensions 6 and serves chiefly toprevent ViTith particular regard to Fig. V, it will be seen that in thisform there is a lineof bearing, extending transversely of .the tire ofgreater length than the diameter of the tire itself.

As has been said, while the'ca-r is running in ordinary use, the anchorblock 1 will be in place, but the foot member will be stored away in thetool kit, or elsewhere. When, for example, a blow-out has occurred, anda tire is to be removed, the foot member Will be applied to the anchormember while the anchor member is at some point in its circle ofrotation other than the lowermost. VVhen applied the foot member willtake the relative position fully illustrated in Figs. II, III, and V.\Vhen the foot member has been so applied, progress of the car in eitherdirection until the appliance comes to the lowermost point in the circleof turning of the wheel will effect the lifting of the car; so that itwill rest, not on the tread of the tire, but on the foot member, in theposition shown in Figs. I, II, III and V. In this position the tire maybe removed and replaced. When" all is ready, the further moving of. themachine S 111 either direction will shift the machine again to rest uponthe. tire, while the lifting attachment is carried away from the ground.

as is sufficiently indicated in the IV hen this has happened, the footmember may be removed and put away again! It will be observed that, whenthe lifting attachment is in service and the automobile is supported onthe foot member, the tire s freely accessible from. the outside, that isto say, the left hand side as seen in Fig. III.

I do not intend to give an exhaustive catalogue of incidentaladvantages, but two or three may be noted. This foot member is adaptedto serve, not in place of a lifting jack only, but, when occasionarises, will perform the ofiica ot' the attachment now familiar by thename ,mud hook, to carry the machine out of a mud hole in which thewheel otherwise is slipping. The medial loop 5 of the foot member,projecting through the eye -a, forms a ring through which the loop of apadlock b may be introduced. locked to the wheel, the automobile isreasonably protected against theft. Figs. I, III, and V show the padlockin place While the foot member is in its car-sustaining position. Itwill be understood that ordinarily when the lock is in place the footmember is not in this position, but the appliance stands at some otherpoint in the circle'of the turning of the wheel. This slightlyexceptional showing is resorted to, to save repetition in drawing. Theactual state of the case will readily be understood. It will thus beseen that the appliance 21-: at once a lifting member, mud hook and. atheftpreventing appliance.

I claim as my invention:

1. An attachment for a vehicle wheel consistingof an anchor blockpermanently bolted to the telly of the wheel in: a direction radial ofthe wheel and provided with When the foot member is so" aseat, and afoot member adapted to be 1 thrust into and removed from the seat inpresenting to the road a bearing part overlying and spaced from thetread of the tire, substantially as described.

An attachment for a vehicle wheel consisting of a recessed anchor-blockperinanently secured to the folly of the wheel and forming together withthe telly an eye extending transversely of and opening across the telly,and a foot member of essentially C shape adapted to be thrust at one endthrough such eye and. when so thrust in surrounding the tire above andbelow and at one side and presenting to the road a bearing partoverlying and spaced from the tread of the tire, substantially asdescribed.

3. An attachment for a vehicle wheel consisting of a looped bar ofessentially C shape adapted to be introduced into and removed from aseat formed in the rim of a wheel to receive it and when in placeextending opposite and spaced at an interval from the tread surface ofthe tire, substantially as described.

4. An attachment for a vehicle wheel consisting of an eye-like seatopening across the telly oi": the Wheel, and a foot member formed of alooped bar, the medial loop insertible through said eye-like seat-andthe terminal portions extending when the foot member is in placeopposite and spaced at an interval from the tread surface of the tire,with a web provided with roadgripping teeth borne by the terminalportions of the looped bar, substantially as described.

5. An attachment for a vehicle wheel consisting of a looped bar ofessentially C shape adapted to be introduced into and removed from aseat formed in the rim of a wheel to receive it, and when in placeencircling the rim above and below and at one side, and standing awayfrom the tire at the side and over the tread, the space between theotherwise free ends of the loop being bridged by a Web, substantially asdescribed.

6. An attachment for a vehicle wheel consisting of a looped bar ofessentially C shape adapted to be introduced into and removed from aseat formed in the rim of a wheel to receive it and when in placeextending at one end in the form of a padlockreceiving eye adjacent thewheel rim and extending at the other end opposite and spaced at-aninterval from the tread surface of the wheel, substantially asdescribed.

In testimony whereof I have hereunto set my hand.

JOHN M. TOBIAS. Witnesses:

BAYARD H. CHRIsrY, FRANCIS J. TOMASSON.

